Hydroelastic analysis of slamming induced impact on stiff and flexible structures by two-way CFD-FEA coupling
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2023-08-17
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Mcode
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Language
en
Pages
13
1300–1312
1300–1312
Series
Ships and Offshore Structures, Volume 18, issue 9
Abstract
In rough seas, ships may be subject to wave-induced slamming loads.Thus, modelling of fluid and structural mechanics, and their dynamic interactions can help with the evaluation of fluid actions and the prediction ofwave-induced loads for use in ship design. In this paper a partitioned two-way coupled CFD-FEA fluid–structure interaction (FSI) method is usedto study the water entry of flat plates with different impact velocities and wedges with different deadrise angles. Results show that when flexibleplate dynamics prevail, at relatively low to medium impact velocity a negative correlation between the nondimensional pressure and water entryvelocities is evident near plate centre areas. A steady correlation exists when only stiff plate dynamics prevail. Pressure differences between stiffand flexible wedges become evident at small deadrise angles. The similarity of the pressure distribution during water impingement of ideally stiffwedge structures is not valid when structural flexibility prevails.Description
Publisher Copyright: © 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.
Keywords
fluid–structure interactions (FSI), hydroelasticity, ship design, Slamming loads, two-way coupling
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Citation
Yan, D, Mikkola, T, Kujala, P & Hirdaris, S 2023, ' Hydroelastic analysis of slamming induced impact on stiff and flexible structures by two-way CFD-FEA coupling ', Ships and Offshore Structures, vol. 18, no. 9, pp. 1300–1312 . https://doi.org/10.1080/17445302.2022.2116231